Best Pool & Hot Tub Thermometers of 2025

Toby Butcher Avatar
Toby Butcher
Last Updated: 1 Feb 2025

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When it comes to maintaining the perfect temperature for your pool or hot tub, having an accurate thermometer is essential. These pool and hot tub thermometers provide an easy and reliable way to monitor the temperature of your water. With a variety of designs and features available, from floating to digital, you can choose the one that best suits your needs. These thermometers are a must-have for any pool or hot tub owner who wants to keep their water at an optimal temperature for comfort and safety.

At a Glance: Our Top Picks

Easy Read Water Thermometer for Pools Cover #TOP 1
Easy Read Water Thermometer for Pools
ftb score rating icon 9.9
Floating Water Thermometer for Pools & Spas Cover #TOP 2
Floating Water Thermometer for Pools & Spas
ftb score rating icon 9.8
OFFCUP Floating Pool Thermometer for Kids Cover #TOP 3
OFFCUP Floating Pool Thermometer for Kids
ftb score rating icon 9.6

Top 10 Pool & Hot Tub Thermometers

#TOP 1

Easy Read Water Thermometer for Pools

Easy Read Water Thermometer for Pools Cover
Swimming Pool Thermometer Easy To Read Water Temperature Thermometer For Ice Bath Cold Plunge Spa Pool Hot Tub Accessories Wild Swimming

The Thermometer World Pool Thermometer is an essential tool for measuring water temperature across a variety of settings, including swimming pools, ice baths, and hot tubs. Its universal design allows you to easily monitor temperatures, ensuring that your bathing experience is always comfortable. The thermometer features a vibrant blue top, making it easy to locate in your pool. With its high-quality construction, you can trust that it will provide accurate readings, enhancing your enjoyment of water activities.

What We Like
Universal water temperature measurement
Easy-to-locate design
High-quality construction
Accurate readings
#TOP 2

Floating Water Thermometer for Pools & Spas

5011405000743
Floating Water Thermometer for Pools & Spas Cover
Floating Water Thermometer to Easily Read Water Temperature - Great for as a Swimming Pool Thermometer, Spa, Cold Plunge Ice Bath Thermometer, Hot Tub Accessories Wild Swimming Pond

The Thermometer World Water Thermometer is a versatile tool for measuring water temperature in various settings, including swimming pools, hot tubs, and ponds. Its universal design ensures you can monitor temperatures in any body of water, helping you maintain optimal conditions for relaxation or safety. The colourful, orange floating top makes it easy to spot, so you won't lose track of it while enjoying your swim. This thermometer also offers exceptional value, ensuring you receive accurate readings without compromising on quality.

What We Like
Universal water temperature measurement
Easy to locate floating design
Great value for quality
Suitable for various water bodies
#TOP 3

OFFCUP Floating Pool Thermometer for Kids

V5-QXYCWDJ-YZ-FBA
Yellow
OFFCUP Floating Pool Thermometer for Kids Cover
OFFCUP Floating Pool Thermometer, Floating Water Thermometer, Water Temperature Thermometer Floating Thermometer Swimming Pool Thermometer for All Outdoor & Indoor Swimming Pools (Duckling)

The OFFCUP Pool Thermometer features a delightful cartoon animal design, making it an attractive addition for children of all ages while ensuring it stays afloat. It offers convenient, accurate readings in both Fahrenheit and Celsius, helping you monitor the water temperature for a comfortable swimming experience. Made from durable, shatterproof materials, this thermometer is built to last in any season. Its lightweight and portable design, complete with a drawstring, prevents it from sinking or being lost, ensuring easy use wherever you go.

What We Like
Cute, child-friendly design
Accurate temperature readings
Durable and shatterproof materials
Lightweight and portable
Suitable for various water settings
#TOP 4

Intex 29039 Floating Pool Thermometer for Water Fun

29039
multi-coloured
Intex 29039 Floating Pool Thermometer for Water Fun Cover
Intex 29039 Floating Pool Thermometer

The Intex Floating Pool Thermometer is an essential tool for ensuring safe and enjoyable water fun. With its user-friendly design, it allows you to easily monitor the temperature of your pool water. This is particularly useful for determining the ideal swimming conditions, helping you plan your activities accordingly. Additionally, its vibrant design adds a fun element to your pool environment, making it more appealing for both children and adults. By keeping track of the water temperature, you can ensure a comfortable swimming experience all summer long.

What We Like
Easy temperature monitoring
Fun design for pool enjoyment
Helps ensure safe swimming
Suitable for all water activities
#TOP 5

Aquatix Pro Large Floating Pool Thermometer

part720
White
Aquatix Pro Large Floating Pool Thermometer Cover
Large Floating Pool Thermometer Aquatix Pro Premium Water Temperature Thermometers with String, Shatter Resistant, for Outdoor & Indoor Swimming Pools, Spas, Hot Tubs, Aquariums & Fish Ponds (1)

The Aquatix Pro Thermometer offers accurate readings in both Fahrenheit and Celsius, ensuring you can easily monitor your water temperature without any guesswork. Its premium build means it is shatter-resistant and durable, making it perfect for outdoor and indoor use. The large display allows for easy temperature reading, providing convenience when checking your pool, spa, or aquarium. Additionally, this thermometer is compatible with various systems, making it a versatile choice for all your water temperature needs.

What We Like
Accurate temperature readings
Durable and shatter-resistant
Large, easy-to-read display
Versatile for various water systems
#TOP 6

Floating Polar Bear Thermometer for Pools

Floating Polar Bear Thermometer for Pools Cover
Floating Polar Bear In A Ring Thermometer for Swimming Pools Hot Tubs Pool Tub Pond

The Happy Hot Tubs Thermometer adds a touch of fun to your swimming pool or hot tub with its charming polar bear design. It conveniently measures temperature in both Celsius and Fahrenheit, ensuring you can easily monitor your water temperature from -2 to 50 degrees Celsius. The handy string feature prevents the thermometer from floating away, giving you peace of mind while you enjoy the water. Standing at 20cm tall, it fits perfectly in the rubber ring that measures 11.5cm in diameter, making it a practical addition to your aquatic enjoyment.

What We Like
Fun design for enjoyment
Measures in Celsius and Fahrenheit
Prevents floating away
Compact and easy to use
#TOP 7

INKBIRD Wireless Floating Pool Thermometer IBS-P01R

Funk Poolthermometer Schwimmend
White
INKBIRD Wireless Floating Pool Thermometer IBS-P01R Cover
INKBIRD Wireless Floating Pool Thermometer, IBS-P01R Water Temperature Thermometer, Outdoor Pool Thermometer with Indoor Monitor for Swimming Pool Whirlpool Spas Hot Tub Bath

The INKBIRD Pool Thermometer offers accurate temperature readings with its sensitive probe, ensuring you know the water temperature between -40℃ to 70℃. Its high waterproof performance prevents fogging on the LCD screen, so you can easily read it during use. With a wireless range of 300ft, you can check temperatures indoors without stepping outside. Additionally, the indoor receiver can connect to three thermometers at once, making it ideal for users with multiple pools or spas.

What We Like
Accurate temperature readings
High waterproof performance
300ft wireless range
Connects up to three thermometers
#TOP 8

Large Floating Pool Thermometer for Spas

Aurum and Adorn
PT-W-S-0892
White
Large Floating Pool Thermometer for Spas Cover
Floating Pool Thermometer - Waterproof, Large and Easy to Read - Spa Pond Ice Bath Thermometer - Hot Tub Accessory

The Aurum and Adorn Thermometer ensures you maintain the perfect water temperature in your pool or spa with its accurate readings. You will appreciate the easy-to-read display, which allows you to check the temperature from a distance without any strain. Its versatile design means it can be used for various water activities, enhancing your enjoyment. Additionally, the durable construction ensures it withstands outdoor conditions, providing reliable readings season after season.

What We Like
Accurate temperature readings
Large, clear display
Versatile for different water uses
Durable for outdoor conditions
Convenient floating design
#TOP 9

ICEBERG Floating Water Thermometer for Pools and Spas

Pool Thermometer
White
ICEBERG Floating Water Thermometer for Pools and Spas Cover
Floating Water Thermometer - Effortless Temperature Reading for Pools, Ice Baths, Spas, Swimming and Hot Tubs

The ICEBERG Water Thermometer is designed for effortless temperature readings in various water settings, including pools, ice baths, spas, and hot tubs. With a temperature range of -4 to +50°C, you can easily monitor your water's warmth, ensuring a comfortable experience. Its accuracy of +/- 1.0°C guarantees reliable readings every time. The durable construction ensures long-lasting use, making it a practical addition to your poolside or spa. Plus, the easy-to-read blue display allows you to quickly check the temperature at a glance.

What We Like
Wide temperature range
High accuracy
Durable design
Easy-to-read display
#TOP 10

Brannan Floating Water Thermometer for Pools and Spas

Brannan
Blue
Brannan Floating Water Thermometer for Pools and Spas Cover
Floating Water Thermometer With Blue Float to Easily Read Water Temperature - Great as a Swimming Pool Thermometer or Ice Bath Thermometer, Spa, Hot Tub Accessories Wild Swimming

The Brannan Water Thermometer is designed to help you easily monitor water temperatures in various settings, such as swimming pools, ice baths, and hot tubs. It features a temperature range from -5 to +60°C, allowing you to accurately gauge the water's warmth. With an accuracy of +/- 1.0°C, you can trust the readings for your comfort and safety. The printed blue scale makes it easy for you to read the temperature at a glance, ensuring you can enjoy your water activities without hassle.

What We Like
Wide temperature range
Accurate readings
Easy-to-read scale
Versatile use
Buying Guide Image
Editor's Notes

During our pool & hot tub thermometer research, we found 135 pool & hot tub thermometer products and shortlisted 10 quality products. We collected and analyzed 36,421 customer reviews through our big data system to write the pool & hot tub thermometers list. We found that most customers choose pool & hot tub thermometers with an average price of £8.46.

The pool & hot tub thermometers are available for purchase. We have researched hundreds of brands and picked the top brands of pool & hot tub thermometers, including Thermometer World, OFFCUP, Intex, Aquatix Pro, Happy Hot Tubs. The seller of top 1 product has received honest feedback from 958 consumers with an average rating of 4.8.

Written by
Toby Butcher Avatar

Toby Butcher is a Horticulturist, and he earned his title as a Master Gardener in 2016. Toby has acquired a 25-year experience as a home gardener planting, designing, grooming vegetables and flowers. He is the leader of a plant group in Durham. Toby owns a blog where he publishes articles on growing and growing your flowers at home, in a vase, or in a garden.